A search for D0-(D)over-bar0 mixing

被引：0
作者：
Palmer, MA [1 ]
机构：
[1] Univ Illinois, Dept Phys, Urbana, IL 61801 USA
来源：
HIGH ENERGY PHYSICS 99, PROCEEDINGS | 2000年
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中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
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摘要：
The CLEO Collaboration has searched for D-0-(D) over bar (0) mixing using the 'wrong-sign' decay D-0 --> K+pi (-). With 9.0 fb(-1) of data collected by the CLEO II.V detector we have measured the time-integrated rate of D-0 --> K(+)pi (-) relative to the Cabibbo-favored decay (D) over bar (0) --> K(+)pi (-) to be R-WS = (0.34 +/- 0.07 +/- 0.06)%. A time-dependent measurement of the 'wrong-sign' decay rate places 95% C.L. limits on the D-0-(D) over bar0 mixing amplitudes, x' and y', of \x'\ < 3.2% and -5.9% < y' < 0.3%. In a second analysis, we have compared the lifetime of the CP+ eigenstate decays D-0 --> K-K+, pi (+)pi (-) to our measured D-0 lifetime and are able to place 95% C.L. limits on y = Delta Gamma /2<(<Gamma>)over bar> of -8.5% < y < 2.1%. Each of these results is preliminary.
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页码：634 / 636
页数：3
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  • [1] Search for D0-(D)over-bar0 mixing and doubly-Cabibbo-suppressed decays of the D0 in hadronic final states
    Aitala, EM
    Amato, S
    Anjos, JC
    Appel, JA
    Ashery, D
    Banerjee, S
    Bediaga, I
    Blaylock, G
    Bracker, SB
    Burchat, PR
    Burnstein, RA
    Carter, T
    Carvalho, HS
    Copty, NK
    Cremaldi, LM
    Darling, C
    Fernandez, A
    Gagnon, P
    Gobel, C
    Gounder, K
    Halling, AM
    Herrera, G
    Hurvits, G
    James, C
    Kasper, PA
    Kwan, S
    Langs, DC
    Leslie, J
    Lundberg, B
    MayTal-Beck, S
    Meadows, B
    Neto, JRTD
    Milburn, RH
    de Miranda, JM
    Napier, A
    Nguyen, A
    d'Oliveira, AB
    O'Shaughnessy, K
    Peng, KC
    Perera, LP
    Purohit, MV
    Quinn, B
    Radeztsky, S
    Rafatian, A
    Reay, NW
    Reidy, JJ
    dos Reis, AC
    Rubin, HA
    Santha, PKS
    Santoro, AFS
    [J]. PHYSICAL REVIEW D, 1998, 57 (01) : 13 - 27
  • [2] Measurements of lifetimes and a limit on the lifetime difference in the neutral D-Meson system
    Aitala, EM
    Amato, S
    Anjos, JC
    Appel, JA
    Ashery, D
    Banerjee, S
    Bediaga, I
    Blaylock, G
    Bracker, SB
    Burchat, PR
    Burnstein, RA
    Carter, T
    Carvalho, HS
    Copty, NK
    Cremaldi, LM
    Darling, C
    Denisenko, K
    Fernandez, A
    Fox, GF
    Gagnon, P
    Gobel, C
    Gounder, K
    Halling, AM
    Herrera, G
    Hurvits, G
    James, C
    Kasper, PA
    Kwan, S
    Langs, DC
    Leslie, J
    Lundberg, B
    MayTal-Beck, S
    Meadows, B
    Neto, JRTD
    Mihalcea, D
    Milburn, RH
    de Miranda, JM
    Napier, A
    Nguyen, A
    d'Oliveira, AB
    O'Shaughnessy, K
    Peng, KC
    Perera, LP
    Purohit, MV
    Quinn, B
    Radeztsky, S
    Rafatian, A
    Reay, NW
    Reidy, JJ
    dos Reis, AC
    [J]. PHYSICAL REVIEW LETTERS, 1999, 83 (01) : 32 - 36
  • [3] Search for D-0(D)over-bar(0) mixing in semileptonic decay modes
    Aitala, EM
    Amato, S
    Anjos, JC
    Appel, JA
    Ashery, D
    Banerjee, S
    Bediaga, I
    Blaylock, G
    Bracker, SB
    Burchat, PR
    Burnstein, RA
    Carter, T
    Carvalho, HS
    Copty, NK
    Costa, I
    Cremaldi, LM
    Darling, C
    Denisenko, K
    Fernandez, A
    Gagnon, P
    Gerzon, S
    Gobel, C
    Gounder, K
    Halling, AM
    Herrera, G
    Hurvits, G
    James, C
    Kasper, PA
    Kwan, S
    Langs, DC
    Leslie, J
    Lundberg, B
    MayTalBeck, S
    Meadows, B
    Neto, JRTD
    Milburn, RH
    deMiranda, JM
    Napier, A
    Nguyen, A
    dOliveira, AB
    OShaughnessy, K
    Peng, KC
    Perera, LP
    Purohit, MV
    Quinn, B
    Radeztsky, S
    Rafatian, A
    Reay, NW
    Reidy, JJ
    dosReis, AC
    [J]. PHYSICAL REVIEW LETTERS, 1996, 77 (12) : 2384 - 2387
  • [4] STUDY OF D0-DBAR0 MIXING
    ANJOS, JC
    APPEL, JA
    BEAN, A
    BRACKER, SB
    BROWDER, TE
    CREMALDI, LM
    ELLIOTT, JR
    ESCOBAR, CO
    ESTABROOKS, P
    GIBNEY, MC
    HARTNER, GF
    KARCHIN, PE
    KUMAR, BR
    LOSTY, MJ
    LUSTE, GJ
    MANTSCH, PM
    MARTIN, JF
    MCHUGH, S
    MENARY, SR
    MORRISON, RJ
    NASH, T
    NAUENBERG, U
    ONG, P
    PINFOLD, J
    PUNKAR, G
    PUROHIT, MV
    RAAB, JR
    SANTORO, AFS
    SIDHU, JS
    SLIWA, K
    SOKOLOFF, MD
    SOUZA, MHG
    SPALDING, WJ
    STREETMAN, ME
    STUNDZIA, AB
    WITHERELL, MS
    [J]. PHYSICAL REVIEW LETTERS, 1988, 60 (13) : 1239 - 1242
  • [5] ARTUSO M, 1999, HEPEX9908040
  • [6] THE ROLE OF CP VIOLATION IN D-0(D)OVER-BAR(0) MIXING
    BLAYLOCK, G
    SEIDEN, A
    NIR, Y
    [J]. PHYSICS LETTERS B, 1995, 355 (3-4) : 555 - 560
  • [7] Measurement of charm meson lifetimes
    Bonvicini, G
    Cinabro, D
    Greene, R
    Perera, LP
    Zhou, GJ
    Chan, S
    Eigen, G
    Lipeles, E
    Schmidtler, M
    Shapiro, A
    Sun, WM
    Urheim, J
    Weinstein, AJ
    Würthwein, F
    Jaffe, DE
    Masek, G
    Paar, HP
    Potter, EM
    Prell, S
    Sharma, V
    Asner, DM
    Eppich, A
    Gronberg, J
    Hill, TS
    Korte, CM
    Lange, DJ
    Morrison, RJ
    Nelson, HN
    Nelson, TK
    Roberts, D
    Tajima, H
    Behrens, BH
    Ford, WT
    Gritsan, A
    Krieg, H
    Roy, J
    Smith, JG
    Alexander, JP
    Baker, R
    Bebek, C
    Berger, BE
    Berkelman, K
    Boisvert, V
    Cassel, DG
    Crowcroft, DS
    Dickson, M
    von Dombrowski, S
    Drell, PS
    Dumas, DJ
    Ecklund, KM
    [J]. PHYSICAL REVIEW LETTERS, 1999, 82 (23) : 4586 - 4590
  • [8] SEARCH FOR CHARM
    GAILLARD, MK
    LEE, BW
    ROSNER, JL
    [J]. REVIEWS OF MODERN PHYSICS, 1975, 47 (02) : 277 - 310
  • [9] WEAK INTERACTIONS WITH LEPTON-HADRON SYMMETRY
    GLASHOW, SL
    ILIOPOULOS, J
    MAIANI, L
    [J]. PHYSICAL REVIEW D, 1970, 2 (07): : 1285 - +
  • [10] The CLEO II silicon vertex detector
    Hill, TS
    [J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1998, 418 (01) : 32 - 39
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